In this paper, the energy efficient LANDMARK selection process for Energy LANdMark Ad hoc Routing (E-LANMAR) routing protocol in group mobility is presented. The proposed scheme in group mobility gives better performance in throughput and packet delivery ratio in moderate networks size. Since the need of frequent cluster head (LANDMARK) selection process is not required in group mobility, this model is energy efficient and increases network lifetime. The performance analysis of LANMAR and E-LANMAR protocol in group mobility shows that throughput and PDR for E-LANMAR is better compared with LANMAR routing protocol.